Answer:
p = 2, q = 3.
Step-by-step explanation:
A perfect cube is in the form
.

To make this fraction a perfect cube, we need to increase the exponent of 2 to 3 and decrease the exponent of 3 to 3.
Conclusion:
.
Option B. I am 100% sure that the answer is option B. Hope that helped! :D
If not then I am really sorry!
Answer:
74.72
Step-by-step explanation:
Given
mean
Standard deviation 
For Top 25%

and Z value for 75 % is 0.6744
Thus score which separates the Top 25% of students is


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yes
72/12 = 6
66/11 = 6
6 = 6